US 12,440,832 B2
Liquid phase removal of trace of iodide from an organic media using tertiary amine ion exchange adsorbent
Charles Bureau, Monteal (CA); Boris Valsecchi, Montreal (CA); and Jean-Philippe Ross, Montreal (CA)
Assigned to ENERKEM INC., Montreal (CA)
Appl. No. 17/764,683
Filed by ENERKEM INC., Montreal (CA)
PCT Filed Oct. 1, 2020, PCT No. PCT/CA2020/051314
§ 371(c)(1), (2) Date Mar. 29, 2022,
PCT Pub. No. WO2021/062544, PCT Pub. Date Apr. 8, 2021.
Claims priority of provisional application 62/909,292, filed on Oct. 2, 2019.
Prior Publication US 2022/0355287 A1, Nov. 10, 2022
Int. Cl. B01J 41/07 (2017.01); B01J 41/14 (2006.01)
CPC B01J 41/07 (2017.01) [B01J 41/14 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A process of removing CH3I from an organic media comprising less than 1000 ppmw of water, the process comprising:
providing at least one weak base anion exchange adsorbent; and
passing said organic media containing CH3I through said at least one adsorbent thereby removing the CH3I from said organic media,
wherein the weak base anion exchange adsorbent comprises the following structure:

OG Complex Work Unit Chemistry
wherein R1 is a backbone; and
wherein the organic media comprises methanol, ethyl acetate, ethylpropionate, methyl acetate, methanol, isopropyl acetate, n-propyl acetate, n-butyl acetate or a mixture thereof.